osborne



(No Model.)

I C. F. OSBORNE.

PROPELLER FOR FLQATING VESSELS.

No. 508,334.` Patented NOV. 7, 1893.

33% MM Z @M UNITED STATES PATENT OFFICE.

CHARLES F. OSBORNE, OF CAPE TOWN, CAPE COLONY, ASSIGNOR TO ALFRED BORWICK, OF LONDON, ENGLAND.

PROPLLER FOR FLOATING VESSELS.

SPECIFICATION forming part of vLetters Patent No. 508,334, dated November 7, 1893.

Application iled February 20, 1893. Serial No. 463,109. (No model.) Patented in England February 11, 1393, No. 3,105 ill France February 11, 1893,1l0. 227,843; in Italy March 10, 1893,1'XVI, 38, and in Belgium May 18, 1893, No. 104,711.

.To all whom it may concern.'

Beit known that I, CHAELESYFEEDEEIOK OSBORNE, a citizen of England, residing at Cape Town, Cape Colony, have invented a new and useful Improvement in Propellers for Floating Vessels, (for which I have obtained Letters Patent in Great Britain February 11, 1893, No. 3,105; in Italy March 10, 1893, Vol. LXVLNO. 38; in France February y ro 11,1893, No. 227,843, and in Belgium May 18, 1893, No. 104,711 of which the following is a specification.

My invention relates to the construction and means of operating reciprocating propellers for iioating vessels as I shall describe referring to the accompanying drawings.

Figure 1 is a lside view partly in section. Fig. 2 is a sectional plan, and Fig. 3 is a transverse section of the stern part of a vessel prozo vided with a propeller according to lny invention. f. p Two propeller blades G,which may be rectangular as shown, project, one on each side, from a boss F which is rigidly attached to the end of a connecting rod H. This connecting rod is linked to a crank K on a shaft I, which is worked by a pair of engines arranged as shown or otherwise. The crank K, connecting rod I-I and boss F are all inclosed in a casing, through stuffing boxes D D in the sides of which the shaft L passes. The boss F may work in straight guide slots in the side plates of the casing, or it may be, as shown, linked to a radius link R and pass freely through 3 5 the side slots without being guided by them. Theradius link may extend aft, as indicated at R', the inclosed space in the deadwood being suitably shaped, to admit of its movement. The propeller blades G being rigidly attached to the connecting rod H, are variously inclined 4o as they ascend and descend in conformity with the varying inclinations of the connecting rod as its head travels along the circular path of the crank. The displacement of the water by the blades so moving is such that the reaction on them operates to propel the vessel.

Having thus described the nature of this invention and the best means I know of carrying the same into practical effect, I claim 5o 1. The herein described propeller for vessels, comprising a boss and propeller blades rigidly attached thereto and projecting therefrom in combination with a rod rigidly attached to said boss at one end and atits other end linked to a crank, and means for operating said crank, substantially as described.

2. The herein described propeller for vessels, comprising a boss and propeller blades rigidly attached thereto and projecting there- 6o from, in combination with a connecting rod rigidly attached to said boss at one end and at its other end linked to a crank, means for operating said crank, and a guide for guiding the connecting rod, substantially as described.

In testimony whereof I have hereto set my hand and seal, in presence of two subscribing witnesses, this 6th day of February, A. D. 1893.

CHARLES E. osEoRNE. [n sj Witnesses: v

OLIVER IMRAY, Chartered Patent Agent, 28 Southampton Buildings, London, 17V. C'.

JNO. P. M. MILLARD, Clerk to Messrs. Abel ab Imrag, Oonsnlttng Engineers and Patent Agents, 28 Southamplon Buildings, London, W. C'. 

